How severe is CVE-2025-21449?

CVE-2025-21449 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-21449 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21449?

CVE-2025-21449 primarily affects Qualcomm Sm8635p Firmware. In total, 185 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-21449?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-21449 have an EU (EUVD) identifier?

Yes. CVE-2025-21449 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20486.

When was CVE-2025-21449 published?

CVE-2025-21449 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-21449

CVE-2025-21449 is a high-severity vulnerability in Qualcomm Sm8635p Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20486
Weakness: CWE-125
Affected product: Qualcomm Sm8635p Firmware
Published: 2025-07-08
Last modified: 2026-06-17

Description

Transient DOS may occur while processing malformed length field in SSID IEs.

Frequently asked questions

What is CVE-2025-21449?: Transient DOS may occur while processing malformed length field in SSID IEs.
How severe is CVE-2025-21449?: CVE-2025-21449 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-21449 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21449?: CVE-2025-21449 primarily affects Qualcomm Sm8635p Firmware. In total, 185 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-21449?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-21449 have an EU (EUVD) identifier?: Yes. CVE-2025-21449 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20486.
When was CVE-2025-21449 published?: CVE-2025-21449 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2025-bulletin.html

Affected products (185)

cpe:2.3:o:qualcomm:sm8635p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8650q_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8735_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8750_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8750p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:smart_audio_200_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:smart_audio_400_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_4_gen_1_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_4_gen_2_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_460_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_480_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_480\+_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_660_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_662_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_665_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_670_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_675_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_678_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_680_4g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_685_4g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_690_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_695_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_710_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_712_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_720g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_730_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_730g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_732g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_750g_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_765_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_765g_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_768g_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_778g_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_778g\+_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_780g_5g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_782g_mobile_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_7c_compute_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sc7180-ad_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_7c\+_gen_3_compute_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_8_gen_1_mobile_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Sm8635p Firmware

CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-21483 — Critical (CVSS 9.8): Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.
CVE-2025-21450 — Critical (CVSS 9.1): Cryptographic issue occurs due to use of insecure connection method while downloading.
CVE-2025-47392 — High (CVSS 8.8): Memory corruption when decoding corrupted satellite data files with invalid signature offsets.
CVE-2025-21479 — High (CVSS 8.6): Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

All CVEs affecting Qualcomm Sm8635p Firmware →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →